Q. |
What is the range of MLSS concentration in oxidation ditch? |
A. | 500-1000 mg/l |
B. | 1000-2000 mg/l |
C. | 2000-4000 mg/l |
D. | 3000-5000 mg/l |
Answer» D. 3000-5000 mg/l |
Login to Continue
It will take less than 2 minutes